Milking-machine.



G. E. ANDERSON.

MILKING MAGHINE Patented o t,25,191o;

2 SHEETS-SHEET 1.

APPLIGATIOK FILED FEB-l9, 1910.

If: ve ntor witn eases G'. E. ANDERSON.

HILKING MACHINE. I

APPLICATION TILED rnnm, 1910.

)H 5 1M n 8 M: n m a P Inventorwijnesma in res GUSTAF EMIL ANDERSON, OF STOCKHOLM, SWEDEN.

, MILKING-MACHINE.

Specification of Letters Patent.

' Patented Oct. 25, 1910.

Application filed February 19, 1910. Serial No. 544,778.

T 0 all whom it may concern:

'Be it known that I, GUSTAF EMIL AN- nnRsoN, a subject of the King of Sweden, residin at Stockholm, in the Kingdom of Sw en, have invented new and useful Improvements in Milking-Machines, of which the following is a" specification, reference being had to the'drawings accompanying and forming a part hereof.

This invention relates to improvements in milking machines.

The most important condition to be fulfilled in order that machine milking shall have the desired efl'ect is thatthe clamping members Work in a croper manner not only ct to an efl' ective squeezing out of the m k but also in res ect to the teats not bein hurt or irritated, or if such is the case the irritated feelings of the cow will not only reduce her power of delivering the milk but .will also have the unfavorable influence that the cow is not quiet during milking but will possibly try to free herself from themilking machine.

The object of the invention is to provide a niilkin machine exerting a soft clamping action w ich will not in-any way irritate the teats and which at the same time will produce an effective and natural squeezing out of the milk.

In the drawings, I have shown a milking machine embodym the invention.

Figure 1 is a ram illustrating the movement of the arc-s 1a ed clamping member. Fig. 2 is a verticaFsection of a milking organ and its driving device. Fig.- 3 is a top plan view of the whole machine. Figs. 4 and 5 are two views at right angles to each other of detail.

Referring to the drawings, 'a is the stationary clamping member, and b is the arcslmped movable clamping member forming a part of the periphery of a circle and corresponding in length to the length of the stationary clamping'member Q, or the length of a teat. The means for driving the clamping member I) may be of anysuitable kind.

In the embodiment shown it consists of two cranks d and '0 set at an angle to each other which is nearly equal to a right angle and connected by connecting-rods f and g to the clamping member b at or near the upper and lower .e ges thereof. The lengths of the cranks and connectin -rods is such as to eflect the aforesaid rofiing movement withhas such a 'form that the clampin out sliding. In. order to support the clamping member 6 and prevent it from'sinking,

a certain supporting device for the clamping member b is provided, said device consisting in the embodiment shown-of slots or grooves 2' arranged inthe sides of the casing h. Correspondingly to the rolling movement of the clamping member b, the outer, downwardly curved part of each slot or groove '5 forms the involute, in the present instance the c cloid curve described by a certain point .0 the clamping member 6 during its rolling movement, said point being represented by the friction rollers Z: movin in the slots or grooves The inner, upwar' ly curved part of the slot or groove memher I), in moving away from the teat, 1s raised and caused to press against the udder so as to work the same.

In Fig. 1, 7), b and b show the'upperhave a perfect rolling movement without sliding. b shows one position of the clam mg member during its return movement, in

which position it is pressed against .the'

udder, and b shows a position of the clampmember during its movements toward the teat.

It is, obviously, of importance that the slot or groove 27 always takes up a proper position, i. c. coincides with the cycloid arc hereinbcfore mentioned. In order to allow the position of the slot or groove to be adjust ed for instance for wear or other reasons, the slot or groove is arranged in a separate plate I adjustable in position on the casing by set screws m and longitudinal slots. 'In order not to prevent the free movement of the sliding rollers 1?, when the plate 1 is moved, the casing is provided with spacious slots \Yhen cranks and connectin -rods are used the latter may beadjustab e in length and compressible longitudinally in order-to obtain a soft and yielding movement. For

' other arts of the clamping member have worke the same, the said upper edge may be made to project outward.

' adjustably connected to'each other in such a manner as to allowv two of the said milking organs to be swung outward or inward for ad usting same to the positions of the teats of. the cow. .Tothis end each crank shaft 0 and p is provided with two universal joints. The middle portion of each three-part shaft is provided with two cranks,

each'of the two outer portions having one crank, said cranks being set at angles to eachother. corresponding to one quarter of "a circle. As shown in Fig. 2, the cranks placed in one vertical plane are set at angles to each other which are not quite right an les. 9

ien the milking ma'chineisto' be placed on the cow or removed from the same, all the clamping members a and b must be separated from each other. the middle portion of each' shaft may be provided at its "ends with'disks r bearing with their outer sides on similar disks .9 at the inner ends of theouter portions of the-shafts. The disks 4* and s are kept in position by pins t projecting from the disks .9 into corre'spondingrecesses in the middle portion of the shaft. The disks 8 are provided with concentric slotsu(Fig. 4) adated to receive screws 4; screwed into the dis 5 7'. During working, the screws 1) bear on the ends ofthe slotsu, as shown in Fig. 4, whereby the four cranks are caused to take up the relative-positions hereinbefore set forth at right angles to each other.

turning the" shaft backward byf'means of the hand-wheel a: the screws 1: W111 obviously move in the slots u so that the four cranks of the shaft will take 'u positions. allowing all the clamping mem rs a and b. to be separated from each other, by which the machine may be placed in position or removed from the cow.

The movement of the clampin member 'b along the teat may. be ad'uste so as to continue even after the cran s havemoved fa rther;'than",one quarter of a revolution,

' By, thismeans a uniform' running is ob-- V The machine works very silently and espe by which a following teat will lie-operated before the pressure on the former has ceased.

tained and'the milk isnot ueezed out with a violent or unnatural rapi ity.

Since the clamp' members may be entirely smooth, no ru ber need be used as a protectinfilmeans for the teat. On account thereof, 0 machine will beieasy to clean.

cially when cranksand connecting-rods are used, very easily;

To this end,

va curved supporting pat ing member havin The rolling movement of the clamping members relatively to each other is not to be confounded with the rolling action of rolls or the like which are very small as compared with the teats. Such small rolls,

which were known long ago, are very disadvanta eous on' account of the breaking and pul ing action which they exert on the teats.

I claim:

' 1. In a milking machine, the combination of clam ing members one of which has a curved orln, .means for imparting a reciprocating and swinging movement to the said 'curvecl clamping member, and a curved'path for the said clamping member adapted to support and guide the same during its reciprocating and swinging movement in such a manner as to cause the same to first press on the udder and move along the same in contact therewith and to thereupon roll along the teat so as to compress the same from the root downward, substantially as and for the purpose set forth.

2. In a milking machine, the combination of clam ing membersone-of which has a curved orm, means for imparting a recipa'curved supporting path for the said clamp ing member having a part of its length in the form of the involute of the curve formed by the clamping surface of the said clam ing member substantially as and for tl e purpose set forth.

4. In a milking machine, the combination of a substantially straight clam ing member,'a second clamping member avmg-the form of a circular are, means for imparting to the said arc-shaped clamping member a reciprocating and swinging movement, and

' for the said clampv a partof its length in the form of the cyc oid of the circular arc of 'the'sai'd clamping member.

5. In a milkingifiachine, the combination of clamping members one of which has acurved form, cranks and connectin -rods its 7 connected to the said'clamping mem er for imparting a reciprocating and swinging movement thereto, and a curved path for the said clamping member adapted to support and guide the same during its reciprocating to cause the same to first press on the udderand move along the same in contact therer with, and to thereupon roll along the teat s as to compress the same from the root. downward, substantially as and for the purpose set forth. i

6. In a milking machine, the combination of clamping members'one of which has a curved form, cranks and connecting rods connected to the said clamping men] er for imparting a reciprocating and swinging movement thereto, and a curved supporting path for the said clamping member having a part. of its length in the form of the involutc of .the curve. .forn'i'ed by the clamping surface of the said clamping member, substantiallyas and forthe purpose set forth 7. In a milking machine the combination of a substantially straight clamping member, 'an arc-shaped clamping member cooperating with the former, cranks and connect1ng-r0cls connected to the-said latter clamping memher for imparting thereto a reciprocating and swinging movement,- and a curved supporting path for the said clamping member having, a part of its length in the form of the in'v'olnte of the curve formed by the clamping surface of the said clamping member, substantially as and for the purpose set forth.

of a substantially straight clamping memher, a second clamping member having the form of a circular arc, cranks and connectingrodsconnected to the said latter clamping member for imparting'to the same a reciprocating and swinging movement, and

a curved supporting path for the said clamping member havinga part of its length in the form of the (-ycloid of the circulararc thereof.

9. In a milking machine, the combination of curved clamping members corresponding in lengtli to the lengths of the teats, crank shaftsfor'driving the said clamping members, each-shaft being divided in three parts pivotally connected to each other, the middle part of each shaft having two cranks and each of the outer parts thereof having one crank, comiecting-rods connecting the said cranks'to the clamping members for. imparting downward rolling movements thereto, and meansv f or. guiding the said clamping members during their downward rolling movements-in such a manner as to clamp the teats without exerting any pulling action thereon.

10. In a milking machine, the. combination of curved clamping members corresponding in length to the length of the tents, crank-' shafts for'driving the said clamping members, each shaft being divided in threeseparate arts, disks attached to the ends of themidd e part of each shaftrdisks attached to the; inner ends of the outer parts of the shafts and bearing on the said former disks, and means comprising pins and slots for allowing the different parts of the shafts to 8. In a milking machine, the combination be turned a certain angle relatively to each other.

GUSTAF 'EMIL ANDERSON.

Witnesses: v

7 AUG. SoRENsEN,

KARL RUNOSKOG. 

